Arlen Ness Big Rotor vs. PM
Road Captain
Joined: Jun 2007
Posts: 632
Likes: 86
Ok, guys, I have a FXDC Super Glide Custom and I have tried both the Performance Machine 6-piston caliper and the Ness Big Brake.
The final solution for me is the Ness Big Brake with the stock H-D caliper.
I first tried the PM 6-piston caliper with the stock rotor and master cylinder. The PM looked great but was a disappointment on performance. Examining the PM shows the pad sweep width to be smaller than the stock caliper. I went back to the stock caliper set-up. The stock H-D caliper worked better, was stronger than the PM 6-piston.
After seeing the Ness Big Brake rotor, I ordered one and installed it. The Ness Big Brake rotor made a noticeable improvement in stopping power. It is totally adequate for me and some hard-charging riding.
I realize that I could go to twin rotors but I really want to avoid the un-sprung weight of all that hardware hanging on the fork legs. I also prefer the appearance of showing more wheel spokes with a single rotor.
I considered changing my caliper to a Brembo, Nissin or some other caliper but this standard-issue H-D caliper is a honking big unit with big pads and it works well for me on the honking big single rotor.
.
The final solution for me is the Ness Big Brake with the stock H-D caliper.
I first tried the PM 6-piston caliper with the stock rotor and master cylinder. The PM looked great but was a disappointment on performance. Examining the PM shows the pad sweep width to be smaller than the stock caliper. I went back to the stock caliper set-up. The stock H-D caliper worked better, was stronger than the PM 6-piston.
After seeing the Ness Big Brake rotor, I ordered one and installed it. The Ness Big Brake rotor made a noticeable improvement in stopping power. It is totally adequate for me and some hard-charging riding.
I realize that I could go to twin rotors but I really want to avoid the un-sprung weight of all that hardware hanging on the fork legs. I also prefer the appearance of showing more wheel spokes with a single rotor.
I considered changing my caliper to a Brembo, Nissin or some other caliper but this standard-issue H-D caliper is a honking big unit with big pads and it works well for me on the honking big single rotor.
.
Last edited by leafman60; Jul 28, 2017 at 07:31 AM.
Road Captain
Joined: Jun 2007
Posts: 632
Likes: 86
Mine is about 600.
The unsprung weight minimization is to improve suspension and handling by reducing weight inertia of the wheels.
More info:
http://motocrossactionmag.com/dealin...sprung-weight/
http://www.mcnews.com/mcn/editorials/2012JuneOpenRd.pdf
.
Last edited by leafman60; Jul 28, 2017 at 04:08 PM.
Extreme HDF Member
Joined: Jun 2014
Posts: 11,448
Likes: 2,299
From: NW Ohio
I'm working down from laat year's 610. Hoping to see 590 with fuel. Curious to hear how you got down to 600. Is that with a full tank?
Last edited by cggorman; Jul 28, 2017 at 06:55 PM.
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